2009 Fiscal Year Final Research Report
Isotopic and geothermodynamic studies of the granitic plutons
Project/Area Number |
19540510
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Petrology/Mineralogy/Science of ore deposit
|
Research Institution | Kwansei Gakuin University |
Principal Investigator |
TSUBOI Motohiro Kwansei Gakuin University, 理工学部, 准教授 (60411774)
|
Co-Investigator(Kenkyū-buntansha) |
ASAHARA Yoshihiro 名古屋大学, 大学院・環境学研究科, 助教 (10281065)
|
Project Period (FY) |
2007 – 2009
|
Keywords | 地殻 / マントル / 核 / 花崗岩 |
Research Abstract |
Strontium isotopic analysis of apatite was carried out for the Cretaceous Kamihara Tonalite, Ryoke belt, southwestern Japan. It provides direct evidence of SrI heterogeneity in the Kamihara Tonalite. The SrI heterogeneity was caused by the assimilation of high SrI country metamorphic rocks of the Ryoke belt. The original magma and the wall rocks were estimated to be mixed in the ratio 3:7 for the Tenryu area and 8:2 for the Shimoyama area. The effect of assimilation is more significant in the Tenryu area. The Kamihara Tonalite in the Shimoyama area was emplaced after the assimilation of wall metamorphic rocks to an extent of 20% and subsequent complete homogenization. These emplacements occurred under a pressure ranging from 0.15 to 0.44GPa.
|
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] Geochemical mapping in Kobe area, southwest Japan: Elemental behaviors and controlling factors2008
Author(s)
Motohiro Tsuboi, Kenta Imamura, Yasuhisa Kagawa, Masahiro Okabe, Kenta Okauchi, Shosuke Osaki, Harunobu Shibata, Masaki Tanaka, Yuichi Togo, Hisashi Yamamura
Organizer
18th Annual V.M. Goldschmidt Conference
Place of Presentation
Vancouber, Canada
Year and Date
2008-07-14
-
-
-
-
-
[Presentation] 阪神地域における地球化学図2007
Author(s)
加川泰久, 今村謙太, 岡部将大, 岡内賢太, 大崎祥介, 芝田晴信, 田中政輝, 藤後雄一, 山村永, 壷井基裕
Organizer
日本地質学会第114年学術大会
Place of Presentation
北海道大学
Year and Date
2007-09-10
-
-
-